// aimsLayers.js
/*
*  JavaScript template file for ArcIMS HTML Viewer
*		dependent on aimsXML.js, ArcIMSparam.js, aimsCommon.js, aimsMap.js,
*		aimsDHTML.js
*/

aimsLayersPresent=true;

var LayerName = new Array();
var LayerID = new Array();
var LayerVisible = new Array();
var LayerType = new Array();
var LayerIsFeature = new Array();
var LayerExtent = new Array();
var LayerMinScale = new Array();
var LayerMaxScale = new Array();
var LayerRenderString = new Array();
var LayerShapeField = new Array();
var LayerIDField = new Array();
var LayerFieldList = new Array();
var LayerFieldTypeList = new Array();
var LayerFieldSizeList = new Array();
var LayerFieldPrecisionList = new Array();
var LayerFields = new Array();
var LayerFieldType = new Array();
var LayerFieldCount=0;
var ActiveLayer="";
var ActiveLayerType="";
var layerCount = 0;
var layerLeft = 0;
var layerRight = 0;
var layerTop = 0;
var layerBottom = 0;
var fieldIndex = 0;
var FeatureLayerCount = 0;

	// field aliases arrays
var AliasFieldName = new Array();
var AliasFieldAlias = new Array();

var LayerListOpen=false;
var queryOpen = false;

var displayLayerInfoButton=false;

var setLayerVisible = new Array();

// check for query form. . . if present, update field list
function setActiveLayer(i) {
	fieldIndex=0;
	selectCount=0;
	showBuffer=false;
	ActiveLayer=LayerID[i];
	ActiveLayerType=LayerType[i];
	ActiveLayerIndex=i;
	setLayerFields(i);

	if (useGeocode) {
		// if active layer is geocodeable - set current geocode layer to active layer
		if (GCLayerCount>0) {
			var j =-1;
			for (var k=0;k<GCLayerId.length;k++) {
				if (ActiveLayer==GCLayerId[k]) j=k;
			}
			if (j!=-1) {
				GCActiveLayer=j;
			}
		}
	}
	
	if (queryOpen) {
		queryForm();
	} else {
		if ((useExternalWindow) || (!useTextFrame)) {
			Win1 = window.open("","QueryWindow","width=575,height=120,scrollbars=yes,resizable=yes");
			theFrame = "opener";
			if (parent.MapFrame!=null) theFrame = "opener.parent.MapFrame";
		} else {
			Win1 = parent.TextFrame;
			Win1.document.open();
		}
		Win1.document.open();
		Win1.document.writeln('<html><meta http-equiv="Content-Type" content="text/html; charset=' + charSet + '"><head><title>' + titleList[1] + '</title></head>');
		Win1.document.writeln('<body bgcolor="' + tableBackColor + '" text="Black" link="Blue" vlink="Gray" LEFTMARGIN=0 onload="window.focus()">');
		Win1.document.writeln('<center><FONT FACE="Arial" SIZE="-1"><b>' + LayerName[ActiveLayerIndex] + msgList[20] + '</b>');
		Win1.document.writeln('</font></center></body></html>');
		Win1.document.close();
	}
}

// write out form for layerList in separate window
function writeLayerListForm() {
	var Win1 = open(appDir + "toc.htm","LayerListWindow","width=190,height=300,scrollbars=yes,resizable=yes");
	Win1.focus();
	Win1=null;

}

// set up the LayerVisible array for map display
function setupLayerVisible() {
	//alert("setupLayerVisible");
	var toggleCount = LayerVisible.length;
	if (setLayerVisible.length<toggleCount) toggleCount = setLayerVisible.length;
	for (var i=0;i<toggleCount;i++) {
		LayerVisible[i] = setLayerVisible[i];
	}
}



// get list of layers, id/shape fields, scalefactors, etc.
function getLayers(theReply) {
	//alert("LayerInfo:\n" + theReply.length);
	var theReplyUC = theReply.toUpperCase();
	LayerFields.length = 1;
	var startpos = 0;
	var endpos = 0;
	layerCount = 0;
	var pos = -1;
	var lpos = 1;
	var epos = 1;
	var zpos=1;
	var zpos2 = 1;
	var tempString="";
	var visString = "";
	var typeString="";
	var fieldString = "";
	var testString = "";
	var testString2 = "";
	var minString = "";
	var maxString = "";
	var fieldCount = 0;
	LayerName.length=1;
	LayerType.length=1;
	LayerVisible.length=1;
	LayerExtent.length=1;
	LayerIsFeature.length=1;
	LayerID.length=1;
	LayerIDField.length=1;
	LayerShapeField.length=1;
	LayerMinScale.length=1;
	LayerMaxScale.length=1;
	LayerFieldTypeList.length=1;
	LayerFieldList.length=1;
	LayerRenderString.length=1;
	LayerFieldSizeList.length=1;
	LayerFieldPrecisionList.length=1;
	layerCount = 0;
	var layerMinX=0;
	var layerMinY=0;
	var layerMaxX=0;
	var layerMaxY=0;
	lpos = theReplyUC.indexOf("<LAYERINFO",zpos);

	while (lpos > -1) {
		//alert("<LAYERINFO - pos " + lpos );
		
		if (lpos != -1) {
			
			zpos = theReplyUC.indexOf("</LAYERINFO",lpos);
			if (zpos!=-1) {
				pos = theReplyUC.indexOf("NAME=",lpos);
				if (pos != -1) {
					startpos = pos + 6;
					endpos = theReply.indexOf(dQuote, startpos);
					tempString = theReply.substring(startpos,endpos);
					tempString = tempString.replace(/&apos;/g, "'");
					LayerName[layerCount] = tempString;
					testString2 = 'TYPE="FEATURECLASS"';
					pos = theReplyUC.indexOf(testString2,lpos);
					if ((pos != -1) && (pos<zpos)) 
						LayerIsFeature[layerCount]=true;
					else LayerIsFeature[layerCount]=false;
					//startpos = theReplyUC.indexOf("VISIBLE=",endpos);
					startpos = theReplyUC.indexOf("VISIBLE=",lpos);
					if (startpos != -1) {
						startpos = startpos + 9;
						endpos = startpos + 4;
						visString = theReply.substring(startpos,endpos);
					}
					startpos = theReplyUC.indexOf("ID=",lpos);
					if ((startpos != -1) && (startpos<zpos)) {
						startpos = startpos + 4;
						endpos = theReply.indexOf(dQuote, startpos);
						tempString = theReply.substring(startpos,endpos);
						tempString = tempString.replace(/&apos;/g, "'");
						LayerID[layerCount] = tempString;
					} else {
						LayerID[layerCount] = LayerName[layerCount];
					}
					//alert(LayerID[layerCount]);
					if (visString=="true") {LayerVisible[layerCount] = 1} else {LayerVisible[layerCount] = 0};
					//alert(startpos + "/" + LayerName[layerCount] + ":" + visString);
					startpos = theReplyUC.indexOf("MINSCALE=",lpos);
					if ((startpos != -1) && (startpos<zpos)) {
						startpos += 10;
						endpos = theReply.indexOf(dQuote, startpos);
						minString = theReply.substring(startpos,endpos);
						minString = setDecimalString(minString);
						LayerMinScale[layerCount] = parseFloat(minString);
					} else {
						LayerMinScale[layerCount] = 0;
					}
					startpos = theReplyUC.indexOf("MAXSCALE=",lpos);
					if ((startpos != -1) && (startpos<zpos)) {
						startpos += 10;
						endpos = theReply.indexOf(dQuote, startpos);
						maxString = theReply.substring(startpos,endpos);
						maxString = setDecimalString(maxString);
						LayerMaxScale[layerCount] = parseFloat(maxString);
					} else {
						LayerMaxScale[layerCount] = 1.7976931348623157E308;
					}
					//alert("MinScale:" + LayerMinScale[layerCount] + "\nMaxScale:" + LayerMaxScale[layerCount]);
					if (LayerIsFeature[layerCount]) {
						startpos = theReplyUC.indexOf("<FCLASS TYPE=",lpos);
						zpos2= theReplyUC.indexOf("</FCLASS",lpos);
						if (startpos != -1) {
							startpos = startpos+14;
							endpos = theReply.indexOf(dQuote, startpos);
							typeString = theReply.substring(startpos,endpos);
						} else {
							typeString = "image";
						}
					} else {
						typeString = "image";
					}
					LayerType[layerCount] = typeString;
					var theXYs = getEnvelopeXYs(theReply, lpos);
					tempString = theXYs[0] + "|" + theXYs[1] + "|" + theXYs[2] + "|" + theXYs[3];
					endpos = xmlEndPos;
					theXYs=null;
					LayerExtent[layerCount] = tempString;
					LayerFieldList[layerCount] = "";
					LayerFieldTypeList[layerCount] = "";
					LayerFieldSizeList[layerCount] = "";
					LayerFieldPrecisionList[layerCount] = "";
					LayerIDField[layerCount] = "";
					LayerShapeField[layerCount] = "";
					if (LayerIsFeature[layerCount]) {
						var jpos = 1;
						var fldCount = 0;
						FeatureLayerCount += 1;
						while ((jpos<zpos) && (jpos!=-1)) {
							jpos = theReply.indexOf("<FIELD name=",endpos);
							if (zpos2 > jpos) {
								
								if (jpos != -1) {
									startpos = jpos + 13
									endpos = theReply.indexOf(dQuote, startpos);
									tempString = theReply.substring(startpos,endpos);
									
									startpos = theReply.indexOf("type=",endpos);
									startpos= startpos + 6;
									endpos = theReply.indexOf(dQuote, startpos);
									testString = theReply.substring(startpos,endpos);
									if (testString=="-99") LayerIDField[layerCount] = tempString;
									if (testString=="-98") LayerShapeField[layerCount] = tempString;
									if (fldCount>0) {
										LayerFieldList[layerCount] = LayerFieldList[layerCount] + ",";
										LayerFieldTypeList[layerCount] = LayerFieldTypeList[layerCount] + ",";
										LayerFieldSizeList[layerCount] = LayerFieldSizeList[layerCount] + ",";
										LayerFieldPrecisionList[layerCount] = LayerFieldPrecisionList[layerCount] + ",";
									}
									LayerFieldList[layerCount] = LayerFieldList[layerCount] + tempString ;
									LayerFieldTypeList[layerCount] = LayerFieldTypeList[layerCount] +  testString;
									startpos = theReply.indexOf("size=",jpos);
									startpos= startpos + 6;
									endpos = theReply.indexOf(dQuote, startpos);
									testString = theReply.substring(startpos,endpos);
									LayerFieldSizeList[layerCount] = LayerFieldSizeList[layerCount] +  testString;
									startpos = theReply.indexOf("precision=",jpos);
									startpos += 11;
									endpos = theReply.indexOf(dQuote, startpos);
									testString = theReply.substring(startpos,endpos);
									LayerFieldPrecisionList[layerCount] = LayerFieldPrecisionList[layerCount] +  testString;
									
									fldCount += 1;
									
								}
								
							}
							else {
								// search for next Layer
								endpos = zpos;
								jpos = -1;
								
							}
						}
					} else {
						LayerRenderString[layerCount]="";
					}
				
					//alert("Layer " + layerCount + ": " + LayerName[layerCount]);
					layerCount += 1;
					endpos = zpos;
					
				}
				lpos = theReplyUC.indexOf("<LAYERINFO",zpos);
			} else {
				lpos = -1;
			}
			
		}
	}
	LayerName.reverse();
	LayerVisible.reverse();
	LayerType.reverse();
	LayerIDField.reverse();
	LayerShapeField.reverse();
	LayerExtent.reverse();
	LayerIsFeature.reverse();
	LayerMinScale.reverse();
	LayerMaxScale.reverse();
	LayerFieldTypeList.reverse();
	LayerFieldList.reverse();
	LayerFieldSizeList.reverse();
	LayerFieldPrecisionList.reverse();
	LayerID.reverse();
	LayerRenderString.reverse();
	if (ActiveLayerIndex>=layerCount) ActiveLayerIndex = 0;
	if (!LayerIsFeature[ActiveLayerIndex]) {
		var chk = 0;
		
		for (var i=layerCount-1;i>=0;i--) {
			if (LayerIsFeature[i]) chk = i;
		}
		ActiveLayerIndex = chk;
	}
	ActiveLayer = LayerID[ActiveLayerIndex];
	ActiveLayerType = LayerType[ActiveLayerIndex];
	if (FeatureLayerCount==0) {
		//alert("No Feature Layers");
		canQuery=false;
		useZoomActive=false;
		useIdentify=false;
 		useSelect=false;
		useQuery=false;
		useFind=false;
		useBuffer=false;
		useStoredQuery=false;
		useHyperLink=false;
		queryZoom=false;
	}
	if (noListLayer.length<LayerName.length) {
		noListLayer.length = LayerName.length;
		for (var i=0;i<LayerName.length;i++) {
			if (noListLayer[i]==null) {
				noListLayer[i]=false;
			}
		}
	}
	//alert(layerCount + " layers");
}

// set the Layer Field array using the current Active Layer's fields
function setLayerFields(layerIndex) {
	LayerFields.length=1;
	LayerFieldType.length=1;
	var tempList = new Array();
	if (swapSelectFields) {
		selectFields=selFieldList[layerIndex];
	}
	if (LayerFieldList[layerIndex]!="") {
		// /*
		if (useFieldAlias) {
			AliasFieldName.length=0;
			AliasFieldAlias.length=0;
			var msg = LayerName[layerIndex] + " - aliases: ";
			if (fieldAliasList[layerIndex]!=null) {
				if (fieldAliasList[layerIndex]!="") {
					if (fieldAliasList[layerIndex].indexOf("|")==-1) {
						var tempPair = fieldAliasList[layerIndex].split(":");
						AliasFieldName[0] = tempPair[0];
						AliasFieldAlias[0] = tempPair[1];
						msg += fieldAliasList[layerIndex];
						tempPair=null;
					} else {
						tempList = fieldAliasList[layerIndex].split("|");
						for (var i=0;i<tempList.length;i++) {
							var tempPair = tempList[i].split(":");
							AliasFieldName[i] = tempPair[0];
							AliasFieldAlias[i] = tempPair[1];
							msg += tempList[i] + " ";
						
						}
					}
				} else {
					AliasFieldName[0] = "";
					AliasFieldAlias[0] = "";
				}
			} else {
				AliasFieldName[0] = "";
				AliasFieldAlias[0] = "";			
			}
			//alert(msg);
		}
		// */
		var fList = LayerFieldList[layerIndex].split(",");
		var ftList = LayerFieldTypeList[layerIndex].split(",");	
		var fieldCount = 0;
		for (var i=0;i<fList.length;i++) {
			var useIt = selectFields.toUpperCase().indexOf(fList[i].toUpperCase());
			if ((useIt!=-1) || (selectFields=="#ALL#")) {
				if (fList[i].toUpperCase()!=LayerShapeField[layerIndex].toUpperCase()) {
					LayerFields[fieldCount] = fList[i];
					LayerFieldType[fieldCount] = ftList[i];
					fieldCount += 1;
				}
			}
		}
		LayerFieldCount=fieldCount;
		canQuery=true;
		fList=null;
		ftList=null;
	} else {
		alert(msgList[21]);
		canQuery=false;
	
	}
}

// get the Field names from the LayerFieldList array
function getLayerFieldNames(layerIndex) {
	if (LayerFieldList[layerIndex]!="") {
		var fList = LayerFieldList[layerIndex].split(",");
	} else {
		var fList=null;
	} 
	return fList;
}

// get the Field types from the LayerFieldTypeList array
function getLayerFieldTypes(layerIndex) {
	if (LayerFieldList[layerIndex]!="") {
		var ftList = LayerFieldTypeList[layerIndex].split(",");	
	} else {
		var ftList=null;
	} 
	return ftList;
}

// get the Field types from the LayerFieldTypeList array
function getLayerFieldSizes(layerIndex) {
	if (LayerFieldList[layerIndex]!="") {
		var ftList = LayerFieldSizeList[layerIndex].split(",");	
	} else {
		var ftList=null;
	} 
	return ftList;
}

// get the Field types from the LayerFieldTypeList array
function getLayerFieldPrecisions(layerIndex) {
	if (LayerFieldList[layerIndex]!="") {
		var ftList = LayerFieldPrecisionList[layerIndex].split(",");	
	} else {
		var ftList=null;
	} 
	return ftList;
}


// display layer information
function showLayerInfo(layerIndex) {
	if ((useExternalWindow) || (!useTextFrame)) {
		Win1 = window.open("","QueryWindow","width=575,height=250,scrollbars=yes,resizable=yes");
		theFrame = "opener";
		if (parent.MapFrame!=null) theFrame = "opener.parent.MapFrame";
	} else {
		Win1 = parent.TextFrame;
		Win1.document.open();
	}
	//Win1.document.open();
	Win1.document.writeln('<html><meta http-equiv="Content-Type" content="text/html; charset=' + charSet + '"><head><title>' + titleList[2] + ' - ' + LayerName[layerIndex] + '</title></head>');
	Win1.document.writeln('<body bgcolor="' + textFrameBackColor + '" text="Black" link="Blue" vlink="Gray" LEFTMARGIN=0 onload="window.focus()">');
	Win1.document.writeln('<center><FONT FACE="Arial" SIZE="-1"><b>' + titleList[2] +'</b>');
	Win1.document.writeln('<table border="1" cellspacing="0" cellpadding="2" nowrap bgcolor="' + tableBackColor + '">');
	
	Win1.document.write('<tr><td><FONT FACE="Arial" SIZE="-1"><b>' + msgList[22] + '</b></font></td><TD COLSPAN="3"><FONT FACE="Arial" SIZE="-1">' +  LayerName[layerIndex] + '</td></tr>');
	Win1.document.write('<tr><td><FONT FACE="Arial" SIZE="-1"><b>' + msgList[23] + '</b></font></td><td COLSPAN="3"><FONT FACE="Arial" SIZE="-1">' +  LayerID[layerIndex] + '</td></tr>');
	Win1.document.write('<tr><td><FONT FACE="Arial" SIZE="-1"><b>' + msgList[24] + '</b></font></td><td COLSPAN="3"><FONT FACE="Arial" SIZE="-1">');
	if (LayerIsFeature[layerIndex]) {
		Win1.document.write('Feature - ' + LayerType[layerIndex]);
	} else {
		Win1.document.write('Image');
	}
	Win1.document.writeln('</td></tr>');
	Win1.document.write('<tr><td><FONT FACE="Arial" SIZE="-1"><b>' + msgList[25] + '</b></font></td><td COLSPAN="3"><FONT FACE="Arial" SIZE="-1">' +  LayerExtent[layerIndex] + '</td></tr>');
	Win1.document.write('<tr><td><FONT FACE="Arial" SIZE="-1"><b>' + msgList[26] + '</b></font></td><td COLSPAN="3"><FONT FACE="Arial" SIZE="-1">' +  LayerMinScale[layerIndex] + '</td></tr>');
	Win1.document.write('<tr><td><FONT FACE="Arial" SIZE="-1"><b>' + msgList[27] + '</b></font></td><td COLSPAN="3"><FONT FACE="Arial" SIZE="-1">' +  LayerMaxScale[layerIndex] + '</td></tr>');
	if (LayerIsFeature[layerIndex]) {
		
		var fieldNames = getLayerFieldNames(layerIndex);
		var fieldTypes = getLayerFieldTypes(layerIndex);
		var fieldSizes = getLayerFieldSizes(layerIndex);
		var fieldPrecisions = getLayerFieldPrecisions(layerIndex);
		if (fieldNames!=null) {
			Win1.document.writeln('<tr><TD COLSPAN="4"><FONT FACE="Arial" SIZE="-1"><b>&nbsp;</b></font></TD></TR>');
			Win1.document.writeln('<tr><TH COLSPAN="4"><FONT FACE="Arial" SIZE="-1"><b>' + msgList[28] + '</b></font></TH></TR>');
			Win1.document.writeln('<tr><TD><FONT FACE="Arial" SIZE="-1"><b>' + msgList[22] + '</b></font></TD><TD><FONT FACE="Arial" SIZE="-1"><b>' + msgList[23] + '</b></font></TD>');
			Win1.document.writeln('<TD><FONT FACE="Arial" SIZE="-1"><b>' + msgList[29] + '</b></font></TD><TD><FONT FACE="Arial" SIZE="-1"><b>' + msgList[30] + '</b></font></TD></TR>');
			for (var i=0;i<fieldNames.length;i++) {
				Win1.document.writeln('<tr><td><FONT FACE="Arial" SIZE="-1">' + fieldNames[i] + '</font></TD>');
				Win1.document.write('<td><FONT FACE="Arial" SIZE="-1">[' + fieldTypes[i] + '] - ');
				var f = fieldTypes[i];
				var theType = msgList[31];
				if (f=="12") {
					theType = msgList[32];
				} else if (f=="-99") {
					theType = msgList[33];
				} else if (f=="-98") {
					theType = msgList[34];
				} else if (f=="4") {
					theType = msgList[35];
				} else if (f=="8") {
					theType = msgList[36];
				} else if (f=="-7") {
					theType = msgList[37];
				} else if (f=="6") {
					theType = msgList[38];
				} else if (f=="5") {
					theType = msgList[39];
				} else if (f=="2005") {
					theType = msgList[40];
				} else if (f=="91") {
					theType = msgList[41];
				}
				Win1.document.writeln(theType + '</font></TD>');
				Win1.document.writeln('<TD><FONT FACE="Arial" SIZE="-1">' + fieldSizes[i] + '</font></TD>');
				Win1.document.writeln('<td><FONT FACE="Arial" SIZE="-1">' + fieldPrecisions[i] + '</font></td>');
				Win1.document.writeln('</TR>');
			}
		} else {
			Win1.document.write('<tr><td><FONT FACE="Arial" SIZE="-1"><b>' + msgList[28] + '</b></font></td><td COLSPAN="3"><FONT FACE="Arial" SIZE="-1">' + msgList[42] + '</td></tr>');
	
		}
		fieldNames=null;
		fieldTypes=null;
		fieldSizes=null;
		fieldPrecisions=null;
	} else {
	Win1.document.write('<tr><td><FONT FACE="Arial" SIZE="-1"><b>' + msgList[43] + '</b></font></td><td COLSPAN="3"><FONT FACE="Arial" SIZE="-1">' + msgList[44] + '</td></tr>');
			Win1.document.write('<tr><td><FONT FACE="Arial" SIZE="-1"><b>' + msgList[28] + '</b></font></td><td COLSPAN="3"><FONT FACE="Arial" SIZE="-1">' + msgList[42] + '</td></tr>');
	}
	Win1.document.writeln('</table>');
	Win1.document.writeln('</font></center></body></html>');
	Win1.document.close();

}


